Jack for tightening antiskid-chains.



w. F.,- EDGING TON. JACK FCB. TIGHTBNING ANTISKID CHAINS.

APPLICATION 31mm 1133. 29. 1912.

13499,- Patented May 14, 1912.

UNITED srarns rrgrnnr ornron.

WILLIAM F. EDGINGTON,OF SPRINGFIELD, OHIO, ASSIGNOR 0F ONE-HALFALEXANDER MURRAY, 0F SPRINGFIELD, OHIO. I

.JACK FOR TIGHTENING ANTISKID-CHAINS.

Specification of Letters Patent.

Patented May 14, 1912.

Application filed' February 2-9, 1912. Serial No. 680,704.

at Springfield, in the county of Clark and State of Ohio, have inventedcertain new and useful Improvements in Jacks for TighteningAntiskid-Chains, of'which the following is a specification.

My invention relates to improvements in chain tighteners, andparticularly to a de-' vice for tightening the ordinary anti-skid chainsused in vehicle wheels.

The object of my invention is to provide a device of this characterwhich will be simple in construction and effective in operation, and toparticularly provide a device which may be retained intightened positionwithout the aid of. the operator during the process of fastening thechain in position or repairing the chain.

In the accompanying drawin s,-Figure 1 is a side view of a device emboying my invention, also showing a portion of a,. yehicle wheel and ananti-skid chain, and the manner of applying the device thereto. Fig. :2is a view of the opposite side of the device showing the parts thereofin closed position.

near the hoop-shaped end of the lever 1.

The arm 4, about its pivotal point, is pro- 'vided with a series ofratchet teeth 6, and

slidably mounted in a way or groove 7 in the part 1, is a pawl 8, heldin position by a headed pin 9, riveted to the pawl and operated in aslot 10 in the part 1.

In operation, the hooks of the respective parts 1 and 4 are engaged inthe links of.

the ends of the chain together. As the operator grasps'the lever 1, heplaces his thumb upon the knurled portion 11 of the pawl and so soon asthe chain has been sufliciently tightened, he may thus readily press thepawl into engagement with the ratchet teeth and hold the parts in thisposition until after the chain has been united together when the tool isbeing used to'place the chain upon the wheel, or until the chain hasbeen repaired when the tool is being used for that purpose.

Projecting laterally from near the end of the portion 1 is a projection12, so positioned that when the arm 4 is thrown to the position shown inFig. 2, the rounded surface of the hoolcshaped portion 5 thereof willcontact the projection 12 and be held in position by the frictionalengagement thereof, the natural resiliency of thei-metal permitting itto be forced into position by a slight pressure thereon.

Having thus described my invention I claim 1. In a chain tightener, amain lever portion having a hook-shaped end, an arm pivotally connectedtherewith with its free end also provided with a hook, said arm having aseries of ratchet teeth arranged about its pivotal point, and a pawl onthe main lever portion for engagement with said ratchet teeth.'

2. In a chain tightener. a main lever portion having a hook-shaped end,an arm pivotally connected with said lever portion, said arm having ahook at its free end and ratchet teeth at its pivotal end, and a pawlslidably mounted in said main lever portion for engagementwith the saidratchet teeth.

3. In a chain tightener, a main lever portion having a hook-shaped end,an arm pivotally connected with said main lever portion, said arm havinga hook atits free end and ratchet teeth at its pivotal end, a groove-wayin said main lever portion, and, a pawl in said groove-way slidablyconnected with said main lever portion for engagement with said ratchetteeth.

4. In a chain tightener, a main lever portion having a hook-shaped end,an armpivotally connected with said lever portion, said arm having ahook at its free 61 161 and rafchet In testimony whereof, I havehereunto set {eeth on its pivotal end, a pawl on said main m hand this22nd day of February 1912. ever .portion for enga ernent with said *1 T1 ratchet teeth, and a proje ti p on said m 'ain EDUIB GTON' 5 leverportion' adapted m -engage the hook Witnesses:

"end of said 21pm and hold th same in closed CHAS. I. WELOH,

position. ESTHER E. PFEIFER.

